[問題] 機率問題
A company is interviewing potential employees. Suppose that each
candidate is either qualified, or unqualified with given probabilities "Q"
and "1-Q", respectively. The company tries to determine a candidate's
qualifications by asking 20 true-false questions. A qualified canddate
has a probability "P" of answering a question correctly, while an unqualified
candidate has a probability "P"of answering incorrectly. The answers to
different questions are assumed to be independent. If the company considers
anyone with at least 15correct answers qualified, and everyone else
unqualified, give a formula for the probability that the 20 questions
will correctly identify someone to be qualified or unqualified.
朋友問我的題目!我想算出的東西很長一串= ="
麻煩各位看看能不能解出來!謝謝
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10/07 01:20, , 1F
10/07 01:20, 1F
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